The Financial Accounting Standards Board (FASB) has published a proposed Taxonomy Implementation Guide (Guide) based on the 2021 U.S. Generally Accepted Accounting Principles (GAAP) Financial Reporting Taxonomy. The proposed Guide provides an overview of the modeling for reporting debt securities under FASB Accounting Standards Codification Topic 320, Investments–Debt Securities. The proposed Guide also demonstrates the modeling through examples and is focused on detail tagging only (Level 4).

The public comment period will end on July 9, 2021. Comments should be submitted directly to the FASB. The SEC staff encourages filers, investors, analysts, software service providers, and other interested parties to participate in this public review to continue to improve the process for creating and using XBRL-structured financial statements.